Outdoor advertising light box

Abstract

The invention relates to the field of advertising light boxes, in particular to a light box for indoor and outdoor advertising which adopts LED internal lighting. In order to solve the problems of poor picture display effect, complicated installation, high production cost and large size limitation of the existing interior lighting advertising light boxes, the present invention proposes an interior lighting advertising light box, which includes a box frame, a built-in light source system, Canvas for displaying pictures and a windproof uniform cover made of transparent or translucent materials; the built-in light source system is installed in the frame of the box, and the built-in light source system includes several light-emitting points, and the two adjacent light-emitting points in the built-in light source system The distance between them is W; the canvas is tensioned and fixed on the frame of the box; the windproof uniform cover is formed by the sealed connection of the cover side plate and the cover top plate, and the windproof uniform light cover is installed inside the box frame and is located between the built-in light source system and the canvas In between, the cover side panels of the windproof light uniformity cover are connected with the frame of the box body, and the cover top plate of the windproof light uniformity cover approaches and faces the canvas. Such internally lit indoor and outdoor advertising light boxes have a good picture display effect.

Description

technical field [0001] The invention relates to the field of advertising light boxes, in particular to a light box for outdoor advertising that adopts LED internal lighting. Background technique [0002] At present, common outdoor advertising light boxes are mainly composed of a frame, a light source system arranged in the frame, and an outer cover (canvas) covered on the frame. When such an outdoor advertising light box encounters the airflow generated by natural wind, artificial equipment or buildings, the airflow forms air pressure on the pressure surface of the outer cover, so that the canvas on the pressure surface and the light source system arranged in the frame, especially the light source The distance between the light-emitting points in the system changes, which in turn causes the picture on the canvas on the pressure surface to appear through spots, darkening, rib patterns, light and shadow stripes, etc., which seriously affects the picture display effect of the o...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems of poor picture display effect, high production cost and large size limitation of existing outdoor advertising light boxes, the present invention proposes an outdoor advertising light box, which includes a box frame, a built-in light source system, and a display screen. Canvas and a windproof uniform cover made of transparent or translucent materials; the built-in light source system is installed in the frame of the box, the built-in light source system includes several light-emitting points, and the built-in light source system is adjacent to The distance between the two light-emitting points is W; the canvas is tensioned and fixed on the frame of the box and faces away from the light-emitting point of the built-in light source system; A sealed connection is formed, and the windproof and uniform light cover is installed inside the box frame and between the built-in light source system and the canvas, and the cover side plate of the windproof light uniform cover is connected to the box frame connected, the top plate of the windshield is close to and facing the canvas

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